<section class='example-view' ng-init='initMethod()' onMousewheel="scaleView()">

    <!-- 控制按钮 -->
    <span ng-click='goback()' class='goBack'>返回</span>
    <span ng-click='loadExample("money-schedule")' class='codeview'>源码</span>

    <!-- 画布 -->
    <svg id='palette' viewBox="0 0 500 500" width=400 height=400></svg>

</section>